Abstract

We experimentally demonstrate that both of the two output light pulses of different wavelengths from a wavelength converter with various branching ratios preserve phase information of an input light at a single-photon level. In our experiment, we converted temporally-separated two coherent light pulses with average photon numbers of ∼ 0.1 at 780 nm to light pulses at 1522 nm by using difference-frequency generation in a periodically-poled lithium niobate waveguide. We observed an interference between temporally-separated two modes for both the converted and the unconverted light pulses at various values of the conversion efficiency. We observed interference visibilities greater than 0.88 without suppressing the background noises for any value of the conversion efficiency the wavelength converter achieves. At a conversion efficiency of ∼ 0.5, the observed visibilities are 0.98 for the unconverted light and 0.99 for the converted light. Such a phase-preserving wavelength converter with high visibilities will be useful for manipulating quantum states encoded in the frequency degrees of freedom.

© 2013 OSA

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    [CrossRef] [PubMed]
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    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]
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    [CrossRef]
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    [CrossRef]
  15. G. Giorgi, P. Mataloni, and F. De Martini, “Frequency hopping in quantum interferometry: Efficient up-down conversion for qubits and ebits,” Phys. Rev. Lett.90, 027902 (2003).
    [CrossRef] [PubMed]
  16. S. Zaske, A. Lenhard, and C. Becher, “Efficient frequency downconversion at the single photon level from the red spectral range to the telecommunications C-band,” Opt. Express19, 12825–12836 (2011).
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    [CrossRef]
  20. S. Miki, T. Yamashita, M. Fujiwara, M. Sasaki, and Z. Wang, “Multichannel SNSPD system with high detection efficiency at telecommunication wavelength,” Opt. Lett.35, 2133–2135 (2010).
    [CrossRef] [PubMed]
  21. J. S. Pelc, L. Ma, C. R. Phillips, Q. Zhang, C. Langrock, O. Slattery, X. Tang, and M. M. Fejer, “Long-wavelength-pumped upconversion single-photon detector at 1550 nm : performance and noise analysis,” Opt. Express19, 21445–21456 (2011).
    [CrossRef] [PubMed]

2013 (2)

R. Ikuta, H. Kato, Y. Kusaka, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “High-fidelity conversion of photonic quantum information to telecommunication wavelength with superconducting single-photon detectors,” Phys. Rev. A87, 010301 (2013).
[CrossRef]

R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “Nonclassical two-photon interference between independent telecommunication light pulses converted by difference-frequency generation,” Phys. Rev. A88, 042317 (2013).
[CrossRef]

2012 (3)

S. Ramelow, a. Fedrizzi, a. Poppe, N. Langford, and a. Zeilinger, “Polarization-entanglement-conserving frequency conversion of photons,” Phys. Rev. A85, 013845 (2012).
[CrossRef]

S. Zaske, A. Lenhard, C. Keßler, J. Kettler, C. Hepp, C. Arend, R. Albrecht, W.-M. Schulz, M. Jetter, P. Michler, and C. Becher, “Visible-to-Telecom Quantum Frequency Conversion of Light from a Single Quantum Emitter,” Phys. Rev. Lett.109, 147404 (2012).
[CrossRef] [PubMed]

L. Ma, O. Slattery, and X. Tang, “Single photon frequency up-conversion and its applications,” Phys. Rep.521, 69–94 (2012).
[CrossRef]

2011 (3)

2010 (6)

S. Miki, T. Yamashita, M. Fujiwara, M. Sasaki, and Z. Wang, “Multichannel SNSPD system with high detection efficiency at telecommunication wavelength,” Opt. Lett.35, 2133–2135 (2010).
[CrossRef] [PubMed]

Y. Dudin, A. Radnaev, R. Zhao, J. Blumoff, T. Kennedy, and A. Kuzmich, “Entanglement of Light-Shift Compensated Atomic Spin Waves with Telecom Light,” Phys. Rev. Lett.105, 260502 (2010).
[CrossRef]

M. Raymer, S. van Enk, C. McKinstrie, and H. McGuinness, “Interference of two photons of different color,” Opt. Commun.283, 747–752 (2010).
[CrossRef]

H. Takesue, “Single-photon frequency down-conversion experiment,” Phys. Rev. A82, 013833 (2010).
[CrossRef]

N. Curtz, R. Thew, C. Simon, N. Gisin, and H. Zbinden, “Coherent frequency-down-conversion interface for quantum repeaters,” Opt. Express18, 22099–22104 (2010).
[CrossRef] [PubMed]

M. T. Rakher, L. Ma, O. Slattery, X. Tang, and K. Srinivasan, “Quantum transduction of telecommunications-band single photons from a quantum dot by frequency upconversion,” Nat. Photonics4, 786–791 (2010).
[CrossRef]

2009 (2)

2008 (1)

H. Takesue, “Erasing Distinguishability Using Quantum Frequency Up-Conversion,” Phys. Rev. Lett.101, 173901 (2008).
[CrossRef] [PubMed]

2005 (2)

2003 (1)

G. Giorgi, P. Mataloni, and F. De Martini, “Frequency hopping in quantum interferometry: Efficient up-down conversion for qubits and ebits,” Phys. Rev. Lett.90, 027902 (2003).
[CrossRef] [PubMed]

1990 (1)

Albrecht, R.

S. Zaske, A. Lenhard, C. Keßler, J. Kettler, C. Hepp, C. Arend, R. Albrecht, W.-M. Schulz, M. Jetter, P. Michler, and C. Becher, “Visible-to-Telecom Quantum Frequency Conversion of Light from a Single Quantum Emitter,” Phys. Rev. Lett.109, 147404 (2012).
[CrossRef] [PubMed]

Alibart, O.

S. Tanzilli, W. Tittel, M. Halder, O. Alibart, P. Baldi, N. Gisin, and H. Zbinden, “A photonic quantum information interface,” Nature437, 116–120 (2005).
[CrossRef] [PubMed]

Arend, C.

S. Zaske, A. Lenhard, C. Keßler, J. Kettler, C. Hepp, C. Arend, R. Albrecht, W.-M. Schulz, M. Jetter, P. Michler, and C. Becher, “Visible-to-Telecom Quantum Frequency Conversion of Light from a Single Quantum Emitter,” Phys. Rev. Lett.109, 147404 (2012).
[CrossRef] [PubMed]

Asobe, M.

Baldi, P.

S. Tanzilli, W. Tittel, M. Halder, O. Alibart, P. Baldi, N. Gisin, and H. Zbinden, “A photonic quantum information interface,” Nature437, 116–120 (2005).
[CrossRef] [PubMed]

Becher, C.

S. Zaske, A. Lenhard, C. Keßler, J. Kettler, C. Hepp, C. Arend, R. Albrecht, W.-M. Schulz, M. Jetter, P. Michler, and C. Becher, “Visible-to-Telecom Quantum Frequency Conversion of Light from a Single Quantum Emitter,” Phys. Rev. Lett.109, 147404 (2012).
[CrossRef] [PubMed]

S. Zaske, A. Lenhard, and C. Becher, “Efficient frequency downconversion at the single photon level from the red spectral range to the telecommunications C-band,” Opt. Express19, 12825–12836 (2011).
[CrossRef] [PubMed]

Blumoff, J.

Y. Dudin, A. Radnaev, R. Zhao, J. Blumoff, T. Kennedy, and A. Kuzmich, “Entanglement of Light-Shift Compensated Atomic Spin Waves with Telecom Light,” Phys. Rev. Lett.105, 260502 (2010).
[CrossRef]

Curtz, N.

De Martini, F.

G. Giorgi, P. Mataloni, and F. De Martini, “Frequency hopping in quantum interferometry: Efficient up-down conversion for qubits and ebits,” Phys. Rev. Lett.90, 027902 (2003).
[CrossRef] [PubMed]

Diamanti, E.

Dudin, Y.

Y. Dudin, A. Radnaev, R. Zhao, J. Blumoff, T. Kennedy, and A. Kuzmich, “Entanglement of Light-Shift Compensated Atomic Spin Waves with Telecom Light,” Phys. Rev. Lett.105, 260502 (2010).
[CrossRef]

Fedrizzi, a.

S. Ramelow, a. Fedrizzi, a. Poppe, N. Langford, and a. Zeilinger, “Polarization-entanglement-conserving frequency conversion of photons,” Phys. Rev. A85, 013845 (2012).
[CrossRef]

Fejer, M. M.

Fujiwara, M.

R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “Nonclassical two-photon interference between independent telecommunication light pulses converted by difference-frequency generation,” Phys. Rev. A88, 042317 (2013).
[CrossRef]

R. Ikuta, H. Kato, Y. Kusaka, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “High-fidelity conversion of photonic quantum information to telecommunication wavelength with superconducting single-photon detectors,” Phys. Rev. A87, 010301 (2013).
[CrossRef]

S. Miki, T. Yamashita, M. Fujiwara, M. Sasaki, and Z. Wang, “Multichannel SNSPD system with high detection efficiency at telecommunication wavelength,” Opt. Lett.35, 2133–2135 (2010).
[CrossRef] [PubMed]

S. Miki, M. Takeda, M. Fujiwara, M. Sasaki, and Z. Wang, “Compactly packaged superconducting nanowire single-photon detector with an optical cavity for multichannel system,” Opt. Express17, 23557–23564 (2009).
[CrossRef]

Giorgi, G.

G. Giorgi, P. Mataloni, and F. De Martini, “Frequency hopping in quantum interferometry: Efficient up-down conversion for qubits and ebits,” Phys. Rev. Lett.90, 027902 (2003).
[CrossRef] [PubMed]

Gisin, N.

N. Curtz, R. Thew, C. Simon, N. Gisin, and H. Zbinden, “Coherent frequency-down-conversion interface for quantum repeaters,” Opt. Express18, 22099–22104 (2010).
[CrossRef] [PubMed]

S. Tanzilli, W. Tittel, M. Halder, O. Alibart, P. Baldi, N. Gisin, and H. Zbinden, “A photonic quantum information interface,” Nature437, 116–120 (2005).
[CrossRef] [PubMed]

Halder, M.

S. Tanzilli, W. Tittel, M. Halder, O. Alibart, P. Baldi, N. Gisin, and H. Zbinden, “A photonic quantum information interface,” Nature437, 116–120 (2005).
[CrossRef] [PubMed]

Hänsch, T. W.

Hepp, C.

S. Zaske, A. Lenhard, C. Keßler, J. Kettler, C. Hepp, C. Arend, R. Albrecht, W.-M. Schulz, M. Jetter, P. Michler, and C. Becher, “Visible-to-Telecom Quantum Frequency Conversion of Light from a Single Quantum Emitter,” Phys. Rev. Lett.109, 147404 (2012).
[CrossRef] [PubMed]

Hong, F.-L.

Ikuta, R.

R. Ikuta, H. Kato, Y. Kusaka, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “High-fidelity conversion of photonic quantum information to telecommunication wavelength with superconducting single-photon detectors,” Phys. Rev. A87, 010301 (2013).
[CrossRef]

R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “Nonclassical two-photon interference between independent telecommunication light pulses converted by difference-frequency generation,” Phys. Rev. A88, 042317 (2013).
[CrossRef]

R. Ikuta, Y. Kusaka, T. Kitano, H. Kato, T. Yamamoto, M. Koashi, and N. Imoto, “Wide-band quantum interface for visible-to-telecommunication wavelength conversion,” Nat. Commun.2, 1544 (2011).
[CrossRef] [PubMed]

Imoto, N.

R. Ikuta, H. Kato, Y. Kusaka, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “High-fidelity conversion of photonic quantum information to telecommunication wavelength with superconducting single-photon detectors,” Phys. Rev. A87, 010301 (2013).
[CrossRef]

R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “Nonclassical two-photon interference between independent telecommunication light pulses converted by difference-frequency generation,” Phys. Rev. A88, 042317 (2013).
[CrossRef]

R. Ikuta, Y. Kusaka, T. Kitano, H. Kato, T. Yamamoto, M. Koashi, and N. Imoto, “Wide-band quantum interface for visible-to-telecommunication wavelength conversion,” Nat. Commun.2, 1544 (2011).
[CrossRef] [PubMed]

Jetter, M.

S. Zaske, A. Lenhard, C. Keßler, J. Kettler, C. Hepp, C. Arend, R. Albrecht, W.-M. Schulz, M. Jetter, P. Michler, and C. Becher, “Visible-to-Telecom Quantum Frequency Conversion of Light from a Single Quantum Emitter,” Phys. Rev. Lett.109, 147404 (2012).
[CrossRef] [PubMed]

Kato, H.

R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “Nonclassical two-photon interference between independent telecommunication light pulses converted by difference-frequency generation,” Phys. Rev. A88, 042317 (2013).
[CrossRef]

R. Ikuta, H. Kato, Y. Kusaka, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “High-fidelity conversion of photonic quantum information to telecommunication wavelength with superconducting single-photon detectors,” Phys. Rev. A87, 010301 (2013).
[CrossRef]

R. Ikuta, Y. Kusaka, T. Kitano, H. Kato, T. Yamamoto, M. Koashi, and N. Imoto, “Wide-band quantum interface for visible-to-telecommunication wavelength conversion,” Nat. Commun.2, 1544 (2011).
[CrossRef] [PubMed]

Kennedy, T.

Y. Dudin, A. Radnaev, R. Zhao, J. Blumoff, T. Kennedy, and A. Kuzmich, “Entanglement of Light-Shift Compensated Atomic Spin Waves with Telecom Light,” Phys. Rev. Lett.105, 260502 (2010).
[CrossRef]

Keßler, C.

S. Zaske, A. Lenhard, C. Keßler, J. Kettler, C. Hepp, C. Arend, R. Albrecht, W.-M. Schulz, M. Jetter, P. Michler, and C. Becher, “Visible-to-Telecom Quantum Frequency Conversion of Light from a Single Quantum Emitter,” Phys. Rev. Lett.109, 147404 (2012).
[CrossRef] [PubMed]

Kettler, J.

S. Zaske, A. Lenhard, C. Keßler, J. Kettler, C. Hepp, C. Arend, R. Albrecht, W.-M. Schulz, M. Jetter, P. Michler, and C. Becher, “Visible-to-Telecom Quantum Frequency Conversion of Light from a Single Quantum Emitter,” Phys. Rev. Lett.109, 147404 (2012).
[CrossRef] [PubMed]

Kitano, T.

R. Ikuta, Y. Kusaka, T. Kitano, H. Kato, T. Yamamoto, M. Koashi, and N. Imoto, “Wide-band quantum interface for visible-to-telecommunication wavelength conversion,” Nat. Commun.2, 1544 (2011).
[CrossRef] [PubMed]

Koashi, M.

R. Ikuta, H. Kato, Y. Kusaka, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “High-fidelity conversion of photonic quantum information to telecommunication wavelength with superconducting single-photon detectors,” Phys. Rev. A87, 010301 (2013).
[CrossRef]

R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “Nonclassical two-photon interference between independent telecommunication light pulses converted by difference-frequency generation,” Phys. Rev. A88, 042317 (2013).
[CrossRef]

R. Ikuta, Y. Kusaka, T. Kitano, H. Kato, T. Yamamoto, M. Koashi, and N. Imoto, “Wide-band quantum interface for visible-to-telecommunication wavelength conversion,” Nat. Commun.2, 1544 (2011).
[CrossRef] [PubMed]

Kobayashi, T.

R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “Nonclassical two-photon interference between independent telecommunication light pulses converted by difference-frequency generation,” Phys. Rev. A88, 042317 (2013).
[CrossRef]

Kumar, P.

Kusaka, Y.

R. Ikuta, H. Kato, Y. Kusaka, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “High-fidelity conversion of photonic quantum information to telecommunication wavelength with superconducting single-photon detectors,” Phys. Rev. A87, 010301 (2013).
[CrossRef]

R. Ikuta, Y. Kusaka, T. Kitano, H. Kato, T. Yamamoto, M. Koashi, and N. Imoto, “Wide-band quantum interface for visible-to-telecommunication wavelength conversion,” Nat. Commun.2, 1544 (2011).
[CrossRef] [PubMed]

Kuzmich, A.

Y. Dudin, A. Radnaev, R. Zhao, J. Blumoff, T. Kennedy, and A. Kuzmich, “Entanglement of Light-Shift Compensated Atomic Spin Waves with Telecom Light,” Phys. Rev. Lett.105, 260502 (2010).
[CrossRef]

Langford, N.

S. Ramelow, a. Fedrizzi, a. Poppe, N. Langford, and a. Zeilinger, “Polarization-entanglement-conserving frequency conversion of photons,” Phys. Rev. A85, 013845 (2012).
[CrossRef]

Langrock, C.

Lenhard, A.

S. Zaske, A. Lenhard, C. Keßler, J. Kettler, C. Hepp, C. Arend, R. Albrecht, W.-M. Schulz, M. Jetter, P. Michler, and C. Becher, “Visible-to-Telecom Quantum Frequency Conversion of Light from a Single Quantum Emitter,” Phys. Rev. Lett.109, 147404 (2012).
[CrossRef] [PubMed]

S. Zaske, A. Lenhard, and C. Becher, “Efficient frequency downconversion at the single photon level from the red spectral range to the telecommunications C-band,” Opt. Express19, 12825–12836 (2011).
[CrossRef] [PubMed]

Ma, L.

L. Ma, O. Slattery, and X. Tang, “Single photon frequency up-conversion and its applications,” Phys. Rep.521, 69–94 (2012).
[CrossRef]

J. S. Pelc, L. Ma, C. R. Phillips, Q. Zhang, C. Langrock, O. Slattery, X. Tang, and M. M. Fejer, “Long-wavelength-pumped upconversion single-photon detector at 1550 nm : performance and noise analysis,” Opt. Express19, 21445–21456 (2011).
[CrossRef] [PubMed]

M. T. Rakher, L. Ma, O. Slattery, X. Tang, and K. Srinivasan, “Quantum transduction of telecommunications-band single photons from a quantum dot by frequency upconversion,” Nat. Photonics4, 786–791 (2010).
[CrossRef]

Mataloni, P.

G. Giorgi, P. Mataloni, and F. De Martini, “Frequency hopping in quantum interferometry: Efficient up-down conversion for qubits and ebits,” Phys. Rev. Lett.90, 027902 (2003).
[CrossRef] [PubMed]

McGuinness, H.

M. Raymer, S. van Enk, C. McKinstrie, and H. McGuinness, “Interference of two photons of different color,” Opt. Commun.283, 747–752 (2010).
[CrossRef]

McKinstrie, C.

M. Raymer, S. van Enk, C. McKinstrie, and H. McGuinness, “Interference of two photons of different color,” Opt. Commun.283, 747–752 (2010).
[CrossRef]

Michler, P.

S. Zaske, A. Lenhard, C. Keßler, J. Kettler, C. Hepp, C. Arend, R. Albrecht, W.-M. Schulz, M. Jetter, P. Michler, and C. Becher, “Visible-to-Telecom Quantum Frequency Conversion of Light from a Single Quantum Emitter,” Phys. Rev. Lett.109, 147404 (2012).
[CrossRef] [PubMed]

Miki, S.

R. Ikuta, H. Kato, Y. Kusaka, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “High-fidelity conversion of photonic quantum information to telecommunication wavelength with superconducting single-photon detectors,” Phys. Rev. A87, 010301 (2013).
[CrossRef]

R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “Nonclassical two-photon interference between independent telecommunication light pulses converted by difference-frequency generation,” Phys. Rev. A88, 042317 (2013).
[CrossRef]

S. Miki, T. Yamashita, M. Fujiwara, M. Sasaki, and Z. Wang, “Multichannel SNSPD system with high detection efficiency at telecommunication wavelength,” Opt. Lett.35, 2133–2135 (2010).
[CrossRef] [PubMed]

S. Miki, M. Takeda, M. Fujiwara, M. Sasaki, and Z. Wang, “Compactly packaged superconducting nanowire single-photon detector with an optical cavity for multichannel system,” Opt. Express17, 23557–23564 (2009).
[CrossRef]

Nishida, Y.

Nishikawa, T.

Ozawa, A.

Pelc, J. S.

Phillips, C. R.

Poppe, a.

S. Ramelow, a. Fedrizzi, a. Poppe, N. Langford, and a. Zeilinger, “Polarization-entanglement-conserving frequency conversion of photons,” Phys. Rev. A85, 013845 (2012).
[CrossRef]

Radnaev, A.

Y. Dudin, A. Radnaev, R. Zhao, J. Blumoff, T. Kennedy, and A. Kuzmich, “Entanglement of Light-Shift Compensated Atomic Spin Waves with Telecom Light,” Phys. Rev. Lett.105, 260502 (2010).
[CrossRef]

Rakher, M. T.

M. T. Rakher, L. Ma, O. Slattery, X. Tang, and K. Srinivasan, “Quantum transduction of telecommunications-band single photons from a quantum dot by frequency upconversion,” Nat. Photonics4, 786–791 (2010).
[CrossRef]

Ramelow, S.

S. Ramelow, a. Fedrizzi, a. Poppe, N. Langford, and a. Zeilinger, “Polarization-entanglement-conserving frequency conversion of photons,” Phys. Rev. A85, 013845 (2012).
[CrossRef]

Raymer, M.

M. Raymer, S. van Enk, C. McKinstrie, and H. McGuinness, “Interference of two photons of different color,” Opt. Commun.283, 747–752 (2010).
[CrossRef]

Roussev, R. V.

Sasaki, M.

R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “Nonclassical two-photon interference between independent telecommunication light pulses converted by difference-frequency generation,” Phys. Rev. A88, 042317 (2013).
[CrossRef]

R. Ikuta, H. Kato, Y. Kusaka, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “High-fidelity conversion of photonic quantum information to telecommunication wavelength with superconducting single-photon detectors,” Phys. Rev. A87, 010301 (2013).
[CrossRef]

S. Miki, T. Yamashita, M. Fujiwara, M. Sasaki, and Z. Wang, “Multichannel SNSPD system with high detection efficiency at telecommunication wavelength,” Opt. Lett.35, 2133–2135 (2010).
[CrossRef] [PubMed]

S. Miki, M. Takeda, M. Fujiwara, M. Sasaki, and Z. Wang, “Compactly packaged superconducting nanowire single-photon detector with an optical cavity for multichannel system,” Opt. Express17, 23557–23564 (2009).
[CrossRef]

Schulz, W.-M.

S. Zaske, A. Lenhard, C. Keßler, J. Kettler, C. Hepp, C. Arend, R. Albrecht, W.-M. Schulz, M. Jetter, P. Michler, and C. Becher, “Visible-to-Telecom Quantum Frequency Conversion of Light from a Single Quantum Emitter,” Phys. Rev. Lett.109, 147404 (2012).
[CrossRef] [PubMed]

Simon, C.

Slattery, O.

L. Ma, O. Slattery, and X. Tang, “Single photon frequency up-conversion and its applications,” Phys. Rep.521, 69–94 (2012).
[CrossRef]

J. S. Pelc, L. Ma, C. R. Phillips, Q. Zhang, C. Langrock, O. Slattery, X. Tang, and M. M. Fejer, “Long-wavelength-pumped upconversion single-photon detector at 1550 nm : performance and noise analysis,” Opt. Express19, 21445–21456 (2011).
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M. T. Rakher, L. Ma, O. Slattery, X. Tang, and K. Srinivasan, “Quantum transduction of telecommunications-band single photons from a quantum dot by frequency upconversion,” Nat. Photonics4, 786–791 (2010).
[CrossRef]

Srinivasan, K.

M. T. Rakher, L. Ma, O. Slattery, X. Tang, and K. Srinivasan, “Quantum transduction of telecommunications-band single photons from a quantum dot by frequency upconversion,” Nat. Photonics4, 786–791 (2010).
[CrossRef]

Takeda, M.

Takesue, H.

H. Takesue, “Single-photon frequency down-conversion experiment,” Phys. Rev. A82, 013833 (2010).
[CrossRef]

H. Takesue, “Erasing Distinguishability Using Quantum Frequency Up-Conversion,” Phys. Rev. Lett.101, 173901 (2008).
[CrossRef] [PubMed]

C. Langrock, E. Diamanti, R. V. Roussev, Y. Yamamoto, M. M. Fejer, and H. Takesue, “Highly efficient single-photon detection at communication wavelengths by use of upconversion in reverse-proton-exchanged periodically poled LiNbO3 waveguides,” Opt. Lett.30, 1725–1727 (2005).
[CrossRef] [PubMed]

Tang, X.

L. Ma, O. Slattery, and X. Tang, “Single photon frequency up-conversion and its applications,” Phys. Rep.521, 69–94 (2012).
[CrossRef]

J. S. Pelc, L. Ma, C. R. Phillips, Q. Zhang, C. Langrock, O. Slattery, X. Tang, and M. M. Fejer, “Long-wavelength-pumped upconversion single-photon detector at 1550 nm : performance and noise analysis,” Opt. Express19, 21445–21456 (2011).
[CrossRef] [PubMed]

M. T. Rakher, L. Ma, O. Slattery, X. Tang, and K. Srinivasan, “Quantum transduction of telecommunications-band single photons from a quantum dot by frequency upconversion,” Nat. Photonics4, 786–791 (2010).
[CrossRef]

Tanzilli, S.

S. Tanzilli, W. Tittel, M. Halder, O. Alibart, P. Baldi, N. Gisin, and H. Zbinden, “A photonic quantum information interface,” Nature437, 116–120 (2005).
[CrossRef] [PubMed]

Terai, H.

R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “Nonclassical two-photon interference between independent telecommunication light pulses converted by difference-frequency generation,” Phys. Rev. A88, 042317 (2013).
[CrossRef]

R. Ikuta, H. Kato, Y. Kusaka, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “High-fidelity conversion of photonic quantum information to telecommunication wavelength with superconducting single-photon detectors,” Phys. Rev. A87, 010301 (2013).
[CrossRef]

Thew, R.

Tittel, W.

S. Tanzilli, W. Tittel, M. Halder, O. Alibart, P. Baldi, N. Gisin, and H. Zbinden, “A photonic quantum information interface,” Nature437, 116–120 (2005).
[CrossRef] [PubMed]

van Enk, S.

M. Raymer, S. van Enk, C. McKinstrie, and H. McGuinness, “Interference of two photons of different color,” Opt. Commun.283, 747–752 (2010).
[CrossRef]

Wang, Z.

R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “Nonclassical two-photon interference between independent telecommunication light pulses converted by difference-frequency generation,” Phys. Rev. A88, 042317 (2013).
[CrossRef]

R. Ikuta, H. Kato, Y. Kusaka, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “High-fidelity conversion of photonic quantum information to telecommunication wavelength with superconducting single-photon detectors,” Phys. Rev. A87, 010301 (2013).
[CrossRef]

S. Miki, T. Yamashita, M. Fujiwara, M. Sasaki, and Z. Wang, “Multichannel SNSPD system with high detection efficiency at telecommunication wavelength,” Opt. Lett.35, 2133–2135 (2010).
[CrossRef] [PubMed]

S. Miki, M. Takeda, M. Fujiwara, M. Sasaki, and Z. Wang, “Compactly packaged superconducting nanowire single-photon detector with an optical cavity for multichannel system,” Opt. Express17, 23557–23564 (2009).
[CrossRef]

Yamamoto, T.

R. Ikuta, H. Kato, Y. Kusaka, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “High-fidelity conversion of photonic quantum information to telecommunication wavelength with superconducting single-photon detectors,” Phys. Rev. A87, 010301 (2013).
[CrossRef]

R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “Nonclassical two-photon interference between independent telecommunication light pulses converted by difference-frequency generation,” Phys. Rev. A88, 042317 (2013).
[CrossRef]

R. Ikuta, Y. Kusaka, T. Kitano, H. Kato, T. Yamamoto, M. Koashi, and N. Imoto, “Wide-band quantum interface for visible-to-telecommunication wavelength conversion,” Nat. Commun.2, 1544 (2011).
[CrossRef] [PubMed]

Yamamoto, Y.

Yamashita, T.

R. Ikuta, H. Kato, Y. Kusaka, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “High-fidelity conversion of photonic quantum information to telecommunication wavelength with superconducting single-photon detectors,” Phys. Rev. A87, 010301 (2013).
[CrossRef]

R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “Nonclassical two-photon interference between independent telecommunication light pulses converted by difference-frequency generation,” Phys. Rev. A88, 042317 (2013).
[CrossRef]

S. Miki, T. Yamashita, M. Fujiwara, M. Sasaki, and Z. Wang, “Multichannel SNSPD system with high detection efficiency at telecommunication wavelength,” Opt. Lett.35, 2133–2135 (2010).
[CrossRef] [PubMed]

Zaske, S.

S. Zaske, A. Lenhard, C. Keßler, J. Kettler, C. Hepp, C. Arend, R. Albrecht, W.-M. Schulz, M. Jetter, P. Michler, and C. Becher, “Visible-to-Telecom Quantum Frequency Conversion of Light from a Single Quantum Emitter,” Phys. Rev. Lett.109, 147404 (2012).
[CrossRef] [PubMed]

S. Zaske, A. Lenhard, and C. Becher, “Efficient frequency downconversion at the single photon level from the red spectral range to the telecommunications C-band,” Opt. Express19, 12825–12836 (2011).
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Zbinden, H.

N. Curtz, R. Thew, C. Simon, N. Gisin, and H. Zbinden, “Coherent frequency-down-conversion interface for quantum repeaters,” Opt. Express18, 22099–22104 (2010).
[CrossRef] [PubMed]

S. Tanzilli, W. Tittel, M. Halder, O. Alibart, P. Baldi, N. Gisin, and H. Zbinden, “A photonic quantum information interface,” Nature437, 116–120 (2005).
[CrossRef] [PubMed]

Zeilinger, a.

S. Ramelow, a. Fedrizzi, a. Poppe, N. Langford, and a. Zeilinger, “Polarization-entanglement-conserving frequency conversion of photons,” Phys. Rev. A85, 013845 (2012).
[CrossRef]

Zhang, Q.

Zhao, R.

Y. Dudin, A. Radnaev, R. Zhao, J. Blumoff, T. Kennedy, and A. Kuzmich, “Entanglement of Light-Shift Compensated Atomic Spin Waves with Telecom Light,” Phys. Rev. Lett.105, 260502 (2010).
[CrossRef]

Nat. Commun. (1)

R. Ikuta, Y. Kusaka, T. Kitano, H. Kato, T. Yamamoto, M. Koashi, and N. Imoto, “Wide-band quantum interface for visible-to-telecommunication wavelength conversion,” Nat. Commun.2, 1544 (2011).
[CrossRef] [PubMed]

Nat. Photonics (1)

M. T. Rakher, L. Ma, O. Slattery, X. Tang, and K. Srinivasan, “Quantum transduction of telecommunications-band single photons from a quantum dot by frequency upconversion,” Nat. Photonics4, 786–791 (2010).
[CrossRef]

Nature (1)

S. Tanzilli, W. Tittel, M. Halder, O. Alibart, P. Baldi, N. Gisin, and H. Zbinden, “A photonic quantum information interface,” Nature437, 116–120 (2005).
[CrossRef] [PubMed]

Opt. Commun. (1)

M. Raymer, S. van Enk, C. McKinstrie, and H. McGuinness, “Interference of two photons of different color,” Opt. Commun.283, 747–752 (2010).
[CrossRef]

Opt. Express (5)

Opt. Lett. (3)

Phys. Rep. (1)

L. Ma, O. Slattery, and X. Tang, “Single photon frequency up-conversion and its applications,” Phys. Rep.521, 69–94 (2012).
[CrossRef]

Phys. Rev. A (4)

S. Ramelow, a. Fedrizzi, a. Poppe, N. Langford, and a. Zeilinger, “Polarization-entanglement-conserving frequency conversion of photons,” Phys. Rev. A85, 013845 (2012).
[CrossRef]

H. Takesue, “Single-photon frequency down-conversion experiment,” Phys. Rev. A82, 013833 (2010).
[CrossRef]

R. Ikuta, H. Kato, Y. Kusaka, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “High-fidelity conversion of photonic quantum information to telecommunication wavelength with superconducting single-photon detectors,” Phys. Rev. A87, 010301 (2013).
[CrossRef]

R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto, “Nonclassical two-photon interference between independent telecommunication light pulses converted by difference-frequency generation,” Phys. Rev. A88, 042317 (2013).
[CrossRef]

Phys. Rev. Lett. (4)

G. Giorgi, P. Mataloni, and F. De Martini, “Frequency hopping in quantum interferometry: Efficient up-down conversion for qubits and ebits,” Phys. Rev. Lett.90, 027902 (2003).
[CrossRef] [PubMed]

H. Takesue, “Erasing Distinguishability Using Quantum Frequency Up-Conversion,” Phys. Rev. Lett.101, 173901 (2008).
[CrossRef] [PubMed]

Y. Dudin, A. Radnaev, R. Zhao, J. Blumoff, T. Kennedy, and A. Kuzmich, “Entanglement of Light-Shift Compensated Atomic Spin Waves with Telecom Light,” Phys. Rev. Lett.105, 260502 (2010).
[CrossRef]

S. Zaske, A. Lenhard, C. Keßler, J. Kettler, C. Hepp, C. Arend, R. Albrecht, W.-M. Schulz, M. Jetter, P. Michler, and C. Becher, “Visible-to-Telecom Quantum Frequency Conversion of Light from a Single Quantum Emitter,” Phys. Rev. Lett.109, 147404 (2012).
[CrossRef] [PubMed]

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Figures (5)

Fig. 1
Fig. 1

Experimental setup. We initially prepare two temporally-separated light pulses at 780 nm. Their frequencies are down-converted to 1522 nm by DFG in the PPLN. The length of the PPLN crystal is 20 mm, and the acceptable bandwidth is calculated to be 0.3 nm. The conversion efficiency is changed by the pump power up to ∼ 700 mW. After the process of the wavelength conversion, the interference fringe of each of the unconverted light at 780 nm and the converted light at 1522 nm is measured.

Fig. 2
Fig. 2

(a) Observed counts of the unconverted photons (red circle) and the converted photons (green triangle). (b) The probability of the unconverted events T (red circle), the conversion efficiency R = 1 − T (green triangle) and the ratio of TT to TV (black square). We derived the curve for T(P) by using the observed photon counts of the unconverted light. The red curve for T is obtained by the best fit to T with 1 A sin 2 ( η P ), where A ≈ 0.94 and η ≈ 0.0044/mW. The green curve for R is given by A sin 2 ( η P ).

Fig. 3
Fig. 3

(a) The interference fringes of the unconverted photons (red circle) and the converted photons (green triangle). These data were observed at the pump power of 165 mW, namely T ≈ 0.5. The interference visibilities are 0.98 for the unconverted light and 0.99 for the converted light. (b) Dependencies of the visibilities on the pump power. The inset shows the enlarged view.

Fig. 4
Fig. 4

(a) Dependencies of the background noises on the pump power. The green triangles show the result for the unconverted visible photons. The red circles show the result for the converted telecom photons. The background noise of the unconverted mode when the pump light is off is slightly larger than zero while the dark count of the detector DV is almost zero, indicating that such a noise may be caused by a component of the residual fundamental cw light as a result of the imperfection of the signal light from the Ti:S laser. (b) Dependencies of the net visibilities on the pump power. The green triangles and the red circles show the results for the unconverted visible and the converted telecom photons, respectively.

Fig. 5
Fig. 5

(a) Dependencies of the visibilities on |α|2 when the pump power is 165 mW. The points of the red circle and the green triangle show the visibilities of the unconverted photons and the converted photons, respectively. The solid curves are obtained by using the signal-photon rates estimated from the experimental data and the observed noise counts shown in Fig. 5(b). (b) Dependencies of the noise counts on |α|2. The points of the red circle and the green triangle are for the unconverted photons and the converted photons, respectively. The solid curves are obtained by using polynomial functions fitted to the observed noise count rate d.

Equations (3)

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H ^ = i h ¯ ( ξ * a ^ c a ^ s ξ a ^ s a ^ c ) ,
a ^ c , out = e i ϕ sin ( | ξ | τ ) a ^ s + cos ( | ξ | τ ) a ^ c
a ^ s , out = cos ( | ξ | τ ) a ^ s e i ϕ sin ( | ξ | τ ) a ^ c ,

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